Effect of growth rate on the microstructure and mechanical behavior of directionally solidified Y3Al5O12/MgAl2O4 eutectics

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dc.authoridAbalı, Serkan / 0000-0002-8881-9963
dc.contributor.authorAbalı, Serkan
dc.date.accessioned2025-01-27T20:35:20Z
dc.date.available2025-01-27T20:35:20Z
dc.date.issued2014
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe mechanical properties of YAG-spinel (Y3Al5O12/MgAl2O4) eutectic rods were studied as a function of the solidification rate. Eutectic rods were grown by a laser-heated floating zone method. YAG-spinel eutectic rods measuring 2 mm in diameter and 200 mm in length were grown at rates of 0.1-10 mm/min with a temperature gradient of approximately 1 x 104 [gm. The compressive creep strength of a crystal grown at a rate of 5 mm/min and a now rate of 1.2 mm/min at 1500 degrees C under a strain rate of 1.0 x 10(-4) was only 398 MPa, which is slightly higher than that of crystals grown under different conditions. The highest flexure strength of the Y3Al5O12/MgAl2O4 material at ambient temperature was obtained at a growth rate of 5 mm/min. The maximum hardness reached 16.7 GPa, and the room fracture toughness was 3.9 MPa M-1/2. The changes in the mechanical behavior and the microstructure of the material that occurred at different growth rates are briefly discussed. (C) 2014 Elsevier B.V. All rights reserved
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)
dc.description.sponsorshipThe author thanks Dr. Yoshihide Nakazumi of Nakazumi Crystal Corporation for useful discussion. The author would also like to thank Takafumi Matsumoto of Kagaku Gijutsu-Sha for kindly providing the seed crystals. This research was partly supported by the Scientific and Technological Research Council of Turkey (TUBITAK).
dc.identifier.doi10.1016/j.jcrysgro.2013.12.050
dc.identifier.endpage24
dc.identifier.issn0022-0248
dc.identifier.issn1873-5002
dc.identifier.scopus2-s2.0-84893091876
dc.identifier.scopusqualityQ2
dc.identifier.startpage18
dc.identifier.urihttps://doi.org/10.1016/j.jcrysgro.2013.12.050
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23632
dc.identifier.volume391
dc.identifier.wosWOS:000335770700004
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Bv
dc.relation.ispartofJournal of Crystal Growth
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectDirectional solidification
dc.subjectEutectics
dc.subjectFloating zone technique
dc.subjectYttrium aluminum garnet
dc.subjectMagnesium aluminate spinel
dc.titleEffect of growth rate on the microstructure and mechanical behavior of directionally solidified Y3Al5O12/MgAl2O4 eutectics
dc.typeArticle

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